CSS (Cascading Style Sheets) is a technology used to design and beautify HTML pages. CSS styles can be created and referenced through the
The following is a detailed introduction to how to write CSS styles in HTML pages:
- Embedded
Embedded refers to embedding CSS styles directly into HTML pages, using < The ;style> tag wraps CSS code. For example:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>内嵌式CSS样式表</title> <style> body { background-color: #f0f0f0; font-family: Arial, sans-serif; } h1 { color: #333; text-align: center; } </style> </head> <body> <h1 id="欢迎来到我的网站">欢迎来到我的网站</h1> <p>这是一段普通的文字</p> </body> </html>
In the above example, we first use the tag to set the character set of the document, and then use the
Note that the
- External style
External style sheet means that we put the CSS style in a separate file and then reference it into the HTML page through the tag. External style sheets have the advantages of being used multiple times and easy to maintain.
In this case, we need to use a file with a .css extension to store the CSS styles. The file can be placed on the server or on your local computer. For example:
/* css/style.css */ body { background-color: #f0f0f0; font-family: Arial, sans-serif; } h1 { color: #333; text-align: center; }
In the HTML page, we need to use the tag to associate the external CSS file with the HTML document. For example:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>外部式CSS样式表</title> <link rel="stylesheet" type="text/css" href="css/style.css"> </head> <body> <h1 id="欢迎来到我的网站">欢迎来到我的网站</h1> <p>这是一段普通的文字</p> </body> </html>
In the above code, we use the tag to associate the style.css file with the HTML document. Note that the href attribute must point to the URL or relative path of the CSS file. If the CSS file is located in the same directory as the HTML document, the href attribute can point directly to the CSS file name.
- Inline style
Inline style refers to applying CSS styles directly to HTML elements. rather than defining them in the stylesheet. For example:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>行内式CSS样式表</title> </head> <body> <h1 id="欢迎来到我的网站">欢迎来到我的网站</h1> <p style="font-family: Arial, sans-serif;">这是一段普通的文字</p> </body> </html>
Inline, we define CSS styles in the style attribute of the HTML element. Each attribute must be separated by a semicolon, and the attribute value must be enclosed in quotes. Please note that using inline can make your HTML code cluttered and difficult to maintain. Therefore, it is generally not recommended to use inline in real projects.
Summary
When writing CSS styles in HTML pages, you can use inline, external and inline methods to achieve it. Among them, external style is the most commonly used method, which can concentrate styles in one file for easy maintenance and multiple use. For inline and inline formats, it is recommended to use them only when necessary, otherwise it may lead to cluttered and difficult-to-maintain HTML code.
The above is the detailed content of How to write css in html page. For more information, please follow other related articles on the PHP Chinese website!

The article discusses useEffect in React, a hook for managing side effects like data fetching and DOM manipulation in functional components. It explains usage, common side effects, and cleanup to prevent issues like memory leaks.

Lazy loading delays loading of content until needed, improving web performance and user experience by reducing initial load times and server load.

Higher-order functions in JavaScript enhance code conciseness, reusability, modularity, and performance through abstraction, common patterns, and optimization techniques.

The article discusses currying in JavaScript, a technique transforming multi-argument functions into single-argument function sequences. It explores currying's implementation, benefits like partial application, and practical uses, enhancing code read

The article explains React's reconciliation algorithm, which efficiently updates the DOM by comparing Virtual DOM trees. It discusses performance benefits, optimization techniques, and impacts on user experience.Character count: 159

The article explains useContext in React, which simplifies state management by avoiding prop drilling. It discusses benefits like centralized state and performance improvements through reduced re-renders.

Article discusses preventing default behavior in event handlers using preventDefault() method, its benefits like enhanced user experience, and potential issues like accessibility concerns.

The article discusses the advantages and disadvantages of controlled and uncontrolled components in React, focusing on aspects like predictability, performance, and use cases. It advises on factors to consider when choosing between them.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 Mac version
God-level code editing software (SublimeText3)

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Notepad++7.3.1
Easy-to-use and free code editor

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
